package netty.decoder.linebasedframedecoder.server;

import io.netty.bootstrap.ServerBootstrap;
import io.netty.channel.ChannelFuture;
import io.netty.channel.ChannelInitializer;
import io.netty.channel.ChannelOption;
import io.netty.channel.EventLoopGroup;
import io.netty.channel.nio.NioEventLoopGroup;
import io.netty.channel.socket.SocketChannel;
import io.netty.channel.socket.nio.NioServerSocketChannel;
import io.netty.handler.codec.LineBasedFrameDecoder;
import io.netty.handler.codec.string.StringDecoder;

public class TimeServer {
	
	public void bind(int port){
		EventLoopGroup bossgroup = new NioEventLoopGroup();
		EventLoopGroup workgroup = new NioEventLoopGroup();
		ServerBootstrap strap = new ServerBootstrap();
		strap.group(bossgroup, workgroup).channel(NioServerSocketChannel.class).option(ChannelOption.SO_BACKLOG, 1024).childHandler(new ChildChannelHandler());
		ChannelFuture f;
		try {
			f = strap.bind(port).sync();
			f.channel().closeFuture().sync();
		} catch (InterruptedException e) {
			e.printStackTrace();
		} finally{
			bossgroup.shutdownGracefully();
			workgroup.shutdownGracefully();
		}
		
	}
	
	public static void main(String []args){
		int port = 8080;
		if(args != null && args.length > 0){
			port = Integer.valueOf(args[0]);
			
		}
		new TimeServer().bind(port);
	}
	private class ChildChannelHandler extends ChannelInitializer<SocketChannel>{

		@Override
		protected void initChannel(SocketChannel ch) throws Exception {
			ch.pipeline().addLast(new LineBasedFrameDecoder(1024));
			ch.pipeline().addLast(new StringDecoder());
			ch.pipeline().addLast(new TimeServerHandler());
		}
		
	}
}
